23139672144 has 20 divisors (see below), whose sum is σ = 59777486496. Its totient is φ = 7713224032.

The previous prime is 23139672131. The next prime is 23139672163. The reversal of 23139672144 is 44127693132.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 23139672096 and 23139672105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241038204 + ... + 241038299.

Almost surely, 2^23139672144 is an apocalyptic number.

23139672144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23139672144 is an abundant number, since it is smaller than the sum of its proper divisors (36637814352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23139672144 is a wasteful number, since it uses less digits than its factorization.

23139672144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482076514 (or 482076508 counting only the distinct ones).

The product of its digits is 217728, while the sum is 42.

The spelling of 23139672144 in words is "twenty-three billion, one hundred thirty-nine million, six hundred seventy-two thousand, one hundred forty-four".